Return
To D'Antiques HiFi Electronics
To Obsolete Media Tape Deck Resources

UHER 4400

Credits: Picture and Specifications provided by tiptoeace@myauctionwatch.com

uher 4400

Specifications

Format

portable tape recorder with 3 tape heads and off-tape monitoring facility

Tape

1/4" magnetic reel tape (DIN 45512 part 1)

Maximum reel size 13 centimeters (5")
Track system quarter track (DIN 45511 part 1)
tape speeds (cm per second) 2.4, 4.75, 9.5, 19.05
tape speeds (inches per second) 15/16, 1.875, 3.75, 7.5
Drive system D.C. motor with electronic commutation and electronic control
Maximum speed deviation ± 1.5%
Wow and Flutter < less than 0.2%
Crosstalk (1 kHz) better than 60dB (mono), better than 45dB (stereo)
Erasure better than or equal to 80 dB
Bias frequency 100 kHz
Record level meters peak-reading with equalization indication
Rise time (meter) approx. 30 ms.
Decay time (meter) approx. 400 ms.
Output of Power stage @ 7.8 volts 2 outputs each 0.8 watts into 4 ohms
Power source (5) standard "D" cells or external 7.5-8.0 VDC
Power consumption Approx. 3 Watts
Frequency response at 19 cm/sec (7.5 inches/sec) 20 - 25,000 Hz
Frequency response at 9.5 cm/sec (3.75 inches/sec) 20 -16,000 Hz
Frequency response at 4.75 cm/sec (1.875 incehs/sec) 25 - 13,000 Hz
Frequency response at 2.4 cm/sec (0.9375 inches/sec) 25 -6,000 Hz
MOL - 5.5 dB (19cm/sec), -9.5dB (9.5cm/sec), -11 (4.75cm/sec)
Microphone Input 80 uv - 32 mv (Source Impedance 200 ohms)
 130 uv - 52 mv (Source Impedance 600 ohms)
Radio Input 1 mv - 400 mv (Impedance 10 kilohms)
Phono (high level) Input 50 mv - 20 mv (Impedance 470 kilohms)
Radio Output 775 mv @ (referenced 0 dB) (Impedance 5.6 kilohms)
Monitor Output 775 mv @ (referenced 0 dB) (Impedance 5.6 kilohms)
Headphones 1 Output maximum 2 Volts (Impedance 33 ohms) (7.8 operating volts)
Headphones 2 Output maximum 2 Volts (7.8 operating volts)
S/N ratio >64 dB (19cm/sec), >62 (9.5cm/sec), >56 (4.75cm/sec)
Site Design and Hosting by DanDLyin DanDLyin Last modified August 15, 2000